Ablock with mass m = 5.6 kg is attached to two springs with spring constants kleft = 35 n/m and kright = 52 n/m. the block is pulled a distance x = 0.21 m to the left of its equilibrium position and released from rest.
1) what is the magnitude of the net force on the block (the moment it is released)?

the magnitude of the net force on the block is 18.27 N

Explanation:

given information:

mass, m = 5.6 kg

spring constant kleft, = 35 N/m

spring constant kright, = 52 N/m

x = 0.21 m

the magnitude of the net force on the block. F

F = - kx

  = - (+) x

  = - (35+52) (0.21)

  = - 18.27 N

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sleep paralysis happens when you are in the middle of waking up or falling asleep. it is the feeling of being conscious but unable to move. it definitely involves hallucinations.

i had a friend that had sleep paralysis and he told me a story one time where he was laying in bed and he couldn't move his body no matter how hard he tried and there was someone standing in the corner of his room coming towards him. he couldn't move and you can't "wake up" because you are already conscious. sometimes sleep paralysis can be triggered by frequent waking up during the night based off of multiple trips to the bathroom, or if you had ever been abused, sleep paralysis can start happening from things like that.

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